Pipe



Aug. 10 1926.

G. E. HULsE PIRE Filed Dc. 11, 1919 Patented Aug. 10, 1926.

UNITED STATES PATENT oFF-lcs. f

GEORGE ELxnULsE', or NEWARK', NEW JERSEY.

PIPE.

Y Ap'piiean filed V11er-,Ember 11,-19'19. sr'iaifivo, 344,115.

This invention relates yto tobacco pipes and the like. is to provide asimple construction of tobacco pipes andthe like which will improve,their smoking action and tend to purifyV the smoke. Another Yobject isto provide a construction of theabove type which shall be readilyymaint-ainedjin efficient working pointedV out hereinafter. Theinvention accordingly consists in ,the 'features of construction, rcombinations Vof elements and arrangements of partswhich willV loeAexemplified in the-structure herein,-` after describedf and the scopeofthe ap vvplication'nf which willbe indicated inthe following claims..y n

In -th`e accompanying drawing. in Vwhich .is shown one of variouspossib-le embodiwithan inclined passage 2 6 leadin from ments of thisinvention,v v Y Figure 1-v is a longitudinal vertical sectionthroughtheisame; Q. .5., f'

Figure 2 is a side elev t ion of'a device incorporated V infthe. pipeand shown on a smaller scale in Figur@J 1; l

Figure 3 is a top plan view of the device shown in Figure 2 with adiagrammatic sectional representation of the walls of the pipeassociated therewith;

Figure 4 is a cr0ss-section alongthe line 4 4 of Figure 3; and

Figure 5 is a cross-section along the line 5-5 of Figure 3.

Similar reference characters refer to similar parts throughout the viewsof the drawing.

Referring now to Figure 1 of the drawings, thereis shown a pipe body 10comprising theJ bowl 11 and extension 12. The latter is hollow toiprovide an opening or passage of the general cylindrical shape and hasfitted therein a device 13, better shown in Figures 2 and 8 of thedrawing. This device, which is preferably constructed of metal althoughit may be formed of other material, comprises an end portion 14 fittingthe inner end of the extension 12, as shown in Figure 1. The oppositeend of this device is preferably given a tapered form as at 15 to t thewalls at the outer end of the extension.

This part 15 is provided with an outward flange 16 the surface of whichmay be One of the. objects thereoff knurled, `and with an .inner taperedrecess 17 into .which is fitted the tapered end of the stem 18. y

Between the end portions 1 4 and 15 of thedevice is an intermediaterportion which is so shaped as to have a large number of substantially-.parallel projections 19 engaging the corresponding portionsof theinnerwalls' ofthek pipe body, indicated at 20. These projections ma beformedJas bya thread cutabout the evice and;interruptt-Clv asVhereinafter l described and as shown in Figure 3' of the-'drawingfandPIQVda large number Of minute-passages 21 eXtendinginageneralfd/irection trans- 'tened' Shown .enf-2.2.Y and 28, ,and when inposition forms the corresponding ,chambers 24;an`d 25. y; l, i;

The inner end portion-,14y is' provided lthe A'bowl-ofthe pi'pej to; thelower c amber 25, and4 the .upperend portionsfrlorided the lupperchamber 24tojthegpassage through the stem of the pipe.Y

It may be noted at this point that although the device positioned asshown in the pipe possesses certain advantages peculiar to suchposition, nevertheless. many of the advantages of this invention may beattained with the device turned about its axis into other positions andeven inverted.

Taking up now the action of this pipe, the smoke is drawn through thepassage 26 into the llower chamber 25, thence divided into a largenumber of minute currents corresponding to the passages 21, into theupper chamber 24. In the latter chamber the smoke passes downwardlythrough the passage 27 and out through the stem in the usual manner.Considering the mechanical eifect of this action, the device normallyacts as a strainer tending to segregate all particles of foreign matterbefore the passage of the smoke through the stem. Also the passage ofsaliva in the reverse direction into the bowl of the pipe issubstantially prevented by the form of the passages through which thesmoke is led. Another function of this device, particularly evident ifit is of metal, is its tendency to condense injurious ingredients of thesmoke upon its outer surface and prevent their being carried out throughthe stem. Then the strainer becomes fouled in use it is readilywithdrawn and in this action the end portion 14 acts as a ,scraper tocleanse the entire inner walls of the extension 12 of theA pipe body.Also inasmuch as substantially the entire smoke passage with respect tothis device is on its outer surface, it may be instantly cleansed andreplaced. It is furthermore to be noted that the renewal of no parts isrequired as vthe entire device is of a permanent nature.

It will thus be seen that there 'is provided a device in which theseveral objects of this invention are achieved and that it is of anessentially practical nature.

As various possible embodiments might be Y made ofthe above inventionand as various changes might be made in the embodiment above set forth,it is to be understood that v all matter herein set forth or shown inthe accompanying drawing is to be interpreted as illustrative and not ina limiting sense.

I claim as my invent-ion:

1. In construction for tobacco pipes and the like, in combination, abowlmember having a substantially cylindrical hollow por*- tion, and adevice removably fitted within said hollow portion engaging the wallsthereof adjacent each of its ends, the intermediate portion thereofbeing flattened on opposite sides and the surface thereof between theflattened sides substantially fitting the walls of said hollow portionand transversely recessed, said device thus forming with the wall ofsaid hollow portion a face intermediate said flattened sides, the

edges of whichrecesses substantially engage said walls, and havingpassages respectively connecting said chambers with the bowl and i withthe steinof the pipe, and astemmember removably secured at'the outer endof said device.

3. In construction' for tobacco pipes and the like, in combination, abody member having a bowl associated therewith and pro` videdvwitli amain chamber, a stem member,

means adapted to be inserted into said chamber and to divide saidchamber into a lower chamber connectingwith said bowl and an upperchamber connecting with said stem, and a plurality of 'groovesexteriorly formed in saidymeans and adapted to form` with the interiorwalls of said main chamber a plurality of passages connecting said upperand lower chambers.

Iii testimony whereof, I have signed my name to this specication thisthird day of- December, 1919. GEORGE E. HULSE.

